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Buy the 3/8-16 x 5 1/2" (PT) Square Head Bolts, Coarse, A-307 Grade A, Plain online from South Coast Fasteners. It measures 3/8" diameter, 5 1/2" (PT) length, coarse thread, A-307 Grade A with a Plain finish. A solid choice for structural framing, heavy equipment, and general assembly. These square head bolts are part of our Square Head Bolts line, stocked across industries such as Automotive and Marine & Offshore.
Pairs well with Finished Hex Nuts and Flat Washers to complete the assembly. Please Contact Us if you need assistance in selecting the right product or placing an order.